If you want "cheap" I have heard of people taking those Ikea end tables and using them as racks. If you need a bit bigger I have also seen them put one upside down and the other right side up and stacked. would give you 36U roughly for $26. If its going into any living space at least in pictures it looks better then any budget 4 post I have seen. I have never done it, but have always been amazed by ikea`s furniture being used for different IT things.